<div class="mls">
  <nz-select [(ngModel)]="value">
    <nz-option nzValue="jack" nzLabel="Jack"></nz-option>
    <nz-option nzValue="lucy" nzLabel="Lucy"></nz-option>
    <nz-option nzValue="disabled" nzLabel="Disabled" nzDisabled></nz-option>
  </nz-select>
  <nz-select [(ngModel)]="value" nzDisabled>
    <nz-option nzValue="lucy" nzLabel="Lucy"></nz-option>
  </nz-select>
  <nz-select [(ngModel)]="value" nzLoading>
    <nz-option nzValue="lucy" nzLabel="Lucy"></nz-option>
  </nz-select>
  <nz-select [(ngModel)]="value" nzAllowClear nzPlaceHolder="Choose">
    <nz-option nzValue="lucy" nzLabel="Lucy"></nz-option>
  </nz-select>
</div>
